Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Richard F. Jameson"'
Autor:
S. T. Hodgkin, Yakiv V. Pavlenko, Niall R. Deacon, D. J. Pinfield, Fraser Clarke, Eric Martin, Gilles Chabrier, Tadashi Nakajima, F. Allard, S. L. Folkes, D. Barrado y Navascués, Philip W. Lucas, Richard F. Jameson, P. C. Hewett, Hugh R. A. Jones, N. Tadashi, Isabelle Baraffe, Mark J. McCaughrean, C. G. Tinney, Sarah L. Casewell, T. R. Kendall, Paul Dobbie, Motohide Tamura, Simon Dye, R. J. Chappelle, N. Lodieu, M. R. Zapatero Osorio, Miki Ishii, S. K. Leggett, Nigel Hambly, Giovanni Carraro, Avril C. Day-Jones, A. Magazzu
Publikováno v:
Astronomy & Astrophysics, 466, 1059-1064
Astronomy & Astrophysics, 466, 3, pp. 1059-1064
Astronomy & Astrophysics, 466, 3, pp. 1059-1064
We report on the first ultracool dwarf discoveries from the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey Early Data Release (LAS EDR), in particular the discovery of T dwarfs which are fainter and more distant than those found using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::986aa80758e21f69c78fdad5940005f0
https://ora.ox.ac.uk/objects/uuid:aee0d3df-d760-40ce-9352-4350c30e1528
https://ora.ox.ac.uk/objects/uuid:aee0d3df-d760-40ce-9352-4350c30e1528
Autor:
Sarah L. Casewell, Estelle Moraux, D. E. A. Baker, Simon Hodgkin, Richard F. Jameson, Paul Dobbie
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 425:3112-3118
We present the results of a photometric and astrometric study of the low mass stellar and substellar population of the young open cluster Blanco 1. We have exploited J band data, obtained recently with the Wide Field Camera (WFCAM) on the United King
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fd181f9e9504f5570629508673c3c5a
https://doi.org/10.1111/j.1365-2966.2012.21535.x
https://doi.org/10.1111/j.1365-2966.2012.21535.x
Autor:
E. Moraux, Matthew R. Burleigh, Paul Dobbie, Simon Hodgkin, Mervyn Roy, Sarah L. Casewell, Richard F. Jameson
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 412:2071-2078
We present Spitzer observations at [3.6] and [4.5] microns together with the methane short (1.58\,\mic)-methane long (1.69\,\mic) colour for 3 cool dwarfs in the Pleiades, PLZJ23, PLZJ93 and PLZJ100. We determine the effective temperatures of PLZJ23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e48014b4170437c80319cf059b6d4aa5
https://doi.org/10.1111/j.1365-2966.2010.18044.x
https://doi.org/10.1111/j.1365-2966.2010.18044.x
Autor:
D. E. A. Baker, Nicolas Lodieu, Sarah L. Casewell, Niall R. Deacon, Richard F. Jameson, Nigel Hambly
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 408:2457-2475
Presented are the results of a large and deep optical-near-infrared multi-epoch survey of the Praesepe open star cluster using data from the UKIDSS Galactic Clusters Survey. Multiple colour magnitude diagrams were used to select potential members and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39857daa7148bc20c24ff63b77279760
https://doi.org/10.1111/j.1365-2966.2010.17302.x
https://doi.org/10.1111/j.1365-2966.2010.17302.x
Autor:
Matthew R. Burleigh, Martin A. Barstow, Ralf Napiwotzki, Sarah L. Casewell, Richard F. Jameson, Paul Dobbie
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 395:1795-1804
We present the results of a high resolution optical spectroscopic study of nine white dwarf candidate members of Praesepe undertaken with the VLT and UVES. We find, contrary to a number of previous studies, that WD0836+201 (LB390, EG59) and WD0837+19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9eb103231218b00af720aa2e00845f0
https://doi.org/10.1111/j.1365-2966.2009.14593.x
https://doi.org/10.1111/j.1365-2966.2009.14593.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 383:1385-1396
We present near-infrared (1.15-2.50 microns) medium-resolution (R = 1700) spectroscopy of a sample of 23 brown dwarf candidates in the young Upper Sco association. We confirm membership of 21 brown dwarfs based on their spectral shape, comparison wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fa638afc40c0244b13fc4ced4a1d16a
https://doi.org/10.1111/j.1365-2966.2007.12676.x
https://doi.org/10.1111/j.1365-2966.2007.12676.x
Autor:
D. J. Pinfield, Martin A. Barstow, Ralf Napiwotzki, Nigel Hambly, Richard F. Jameson, Paul Dobbie, Matthew R. Burleigh, Ivan Hubeny
Publikováno v:
University of Hertfordshire
We report the discovery, from our preliminary survey of the Praesepe open cluster, of two new spectroscopically confirmed white dwarf candidate members. We derive the effective temperatures and surface gravities of WD0837+218 and WD0837+185 (LB5959)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d652ed5aea2f9beed9c8ab615fc3bbc3
https://doi.org/10.1111/j.1365-2966.2004.08522.x
https://doi.org/10.1111/j.1365-2966.2004.08522.x
Publikováno v:
Symposium - International Astronomical Union. 211:171-174
We present evidence which indicates the luminosity functions of star forming regions, open star clusters and the field dips between spectral types M7-M8. We attribute this to a sharp local drop in the luminosity-mass relation and speculate that this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd420caad960a8bc63571a4d8f9be443
https://doi.org/10.1017/s0074180900210504
https://doi.org/10.1017/s0074180900210504
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 335:853-863
Using new infrared data we have reassessed the membership status of candidate low-mass Pleiads unearthed by the International Telescope Project IZ survey. Those with I–K colours consistent with membership of the Pleiades have been compiled with can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7b2c5c62102eb21aa39e15bcd2ff1a8
https://doi.org/10.1046/j.1365-8711.2002.05667.x
https://doi.org/10.1046/j.1365-8711.2002.05667.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 331:445-452
We present both synthetic and observed I - Z colours for a sample of spectroscopically classified M and L dwarfs drawn primarily from recent wide-field infrared surveys. Our synthetic photometry does not reproduce the strong decrease in the I Harris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89259dbb07d2f95cd0f4551fafdf8f25
https://doi.org/10.1046/j.1365-8711.2002.05221.x
https://doi.org/10.1046/j.1365-8711.2002.05221.x